Feldspar and Ludlamite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.56-2.75
3.1-3.2
Fracture
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
two or three
Vitreous, pearly on cleavage
Chemical Composition
Not Available
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Feldspar and Ludlamite Chemical Formula
While comparing Feldspar and Ludlamite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Feldspar and Ludlamite chemical formula.
>- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Feldspar and Ludlamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Feldspar and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Feldspar and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Feldspar is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.